.nav {
  position: fixed;
  bottom: 0;
  width: 100%;
  background-color: #fff;
  z-index: 99999999999;
}
.nav .list {
  display: flex;
  align-items: center;
}
.nav .list .item {
  width: 25%;
  height: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.nav .list .item img {
  width: 22px;
  height: 22px;
}
.nav .list .item span {
  font-size: 12px;
  color: #333;
  margin-top: 5px;
}
.nav .list .item.art span {
  color: #0F4D12;
}
